Sullair AS75 Operation & Maintenance Manual
Sullair AS75 Operation & Maintenance Manual

Sullair AS75 Operation & Maintenance Manual

Stationary air compressor
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AS45-75
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Summarization of Contents

Chapter I Safety
1.1 Overview
General safety precautions for operating Sullair air compressors, emphasizing user responsibility.
1.2 Safety Equipment
List of safety equipment required for installers and operators of the compressor.
1.3 Fire and Explosion Protection
Precautions to prevent fire and explosion hazards during operation and maintenance.
1.4 Moving Parts
Safety guidelines for avoiding contact with moving components of the compressor.
1.5 Hot Surfaces, Sharp Edges and Corners
Warnings about contacting hot surfaces, sharp edges, and corners on the compressor.
1.6 Toxic and Irritative Substances
Safety advice regarding hazardous substances, air quality, and fluid handling.
1.7 Electric Shock Protection
Safety measures to prevent electric shock during installation, maintenance, and operation.
1.8 Hoisting and Transportation
Guidelines and safety procedures for safely hoisting and transporting the compressor unit.
1.9 Miscellaneous
General safety reminders and procedures for enclosure access and personnel safety.
Chapter II Compressor Structure
2.1 Overview
General description of the AS4500 stationary screw compressor and its main components.
Chapter III Installation of Compressor
3.1 Machine Installation
Instructions for mounting the compressor unit on a stable and level foundation.
3.2 Ventilation and temperature reducing
Requirements for ventilation and ambient temperature for optimal compressor operation.
3.3 Check fluid level
Procedure for checking the fluid level in the reservoir before operation.
3.4 Rotation Direction of Motor
How to check and ensure correct rotation direction for the main and fan motors.
Chapter IV Compressor Operation
4.1 Safety Operation Procedure
Key safety procedures to follow for operating the compressor to avoid injury and damage.
4.2 Preparation before Initial Starting
Steps to perform before the first start-up of the compressor, including checks and parameter settings.
4.3 Normal Operation
Instructions for running the compressor under normal operating conditions after initial testing.
4.4 Stop
Procedure for safely stopping the compressor unit.
Chapter V Maintenance and Service
5.1 Overview
Introduction to maintenance schedules and the role of the microprocessor controller in service reminders.
5.2 Daily Maintenance
Daily checks and inspections to ensure proper compressor operation and identify potential issues.
5.3 Service After 50 Operation Hours
Maintenance tasks required after 50 hours of operation, including filter cleaning and replacement.
5.4 Service After Every 1000 Operation Hours
Maintenance tasks recommended every 1000 operation hours, focusing on filters.
5.5 Changing Fluid
Guidelines and precautions for changing the compressor fluid, including fluid types and warranty.
5.6 Maintenance Of Fluid Filter
Procedure for replacing the fluid filter element, including necessary tools and steps.
5.7 Maintenance Of Air Filter
Instructions for replacing the air filter element based on service indicators or hours.
5.8 Maintenance of Fluid/Air Separator
Process for replacing the fluid/air separator element, emphasizing it cannot be cleaned.
5.9 Maintenance Of Minimum Pressure Valve
Procedure for servicing the minimum pressure valve, typically involving O-ring replacement.
5.10 Maintenance of Solenoid Valve
Basic maintenance advice for solenoid valves, focusing on cleaning.
5.11 Maintenance of Pressure Regulator
Steps for maintaining and adjusting the pressure regulator for optimal performance.
5.12 Installation and Maintenance of Coupling
Instructions for installing and maintaining the coupling connecting the motor and compressor.
5.13 Maintenance Of The Motor For Sullair Compressor
Guidelines for maintaining the compressor motor, including operating conditions and general care.
Periodic check
Recommendations for periodic checks of the motor based on usage conditions.
Check and sort-out of windings
Methods for cleaning motor windings, including drying wipe, brush-off, blow-off, and solvent cleaning.
Chapter VI Wiring Diagram
6.1 Wiring diagram of the unit
Electrical wiring diagram for the main unit of the AS45-75 compressor.
6.2 Wiring diagram of the VSD unit
Electrical wiring diagram specifically for the Variable Speed Drive (VSD) unit.
Chapter VII Troubleshooting
7.1 Overview
General advice on diagnosing compressor faults and the importance of systematic analysis.
7.2 Possible compressor fault and actions are listed in the following table
A table listing common compressor symptoms, their possible causes, and recommended actions.
Chapter IX Parts List
9.1 Motor - Compressor System(AS4500-7500—Line Frequency Model)
List of spare parts for the motor and compressor system of the AS4500-7500 line frequency model.
9.2 Motor - Compressor System(AS4500-7500—VSD Model)
Parts list for the motor and compressor system of the AS4500-7500 VSD model.
9.3 Air Inlet System(AS4500-7500—Line Frequency/VSD Model)
Components and parts list for the air inlet system of the AS4500-7500 models.
9.4 Fluid Loop System(AS4500-7500— Line Frequency/VSD Model)
Parts breakdown for the fluid loop system of the AS4500-7500 series compressors.
9.5 Cooling Fan System(AS4500-7500—Line Frequency/VSD Model)
List of parts for the cooling fan system of the AS4500-7500 compressor models.
9.6 Fluid/air Separation System(AS4500-7500— Line Frequency/VSD Model)
Parts list for the fluid/air separation system of the AS4500-7500 series.
9.7 Air Discharge System(AS4500-7500—Line Frequency/VSD Model)
Components of the air discharge system for AS4500-7500 models, including part numbers.
9.8 Control System(AS4500-7500—Line Frequency Model)
Parts list for the control system of the AS4500-7500 Line Frequency Model.
9.9 Control System(AS4500-7500—VSD Model)
Parts list for the control system of the AS4500-7500 VSD Model.
9.10 Air-cooled Acoustical Enclosure System(AS4500-7500—Line Frequency Model)
Parts for the air-cooled acoustical enclosure system of the AS4500-7500 Line Frequency Model.
9.11 Air-cooled Acoustical Enclosure System(AS4500-7500—VSD Model)
Parts list for the acoustical enclosure system of the AS4500-7500 VSD Model.
9.12 Decal System(AS4500-7500—Line Frequency Model)
List of decals and labels for the AS4500-7500 Line Frequency Model.
9.13 Decal System(AS4500-7500—VSD Model)
Decals and labels for the AS4500-7500 VSD Model.

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